My only and favorite rooster is sick. He tries to crow but can't because he is challenged by some respiratory problem, began with gurgling sounds, like someone heavily congested (like he's having trouble breathing), and coughs/sneezes a little. I put the water soluble Terramycin in his water and gave him a few drops of VetRx. I just got this wormer by Rooster Booster also that I am supposed to add to his feed. My questions are: Can I give him this wormer in his feed while he is getting the Terramycin in his water? And another problem is I don't know how to measure a pound of feed (don't have scales) and he is eating my hens' layers mash, and the directions with the Wormer says to add this scoop they supplied to a pound of feed. Does anyone know around how many cups that might be? I know that the density may play a part in it. Also, I read that it is good to give them yogurt when they have taken an antibiotic. Do I give him the yogurt during the week of taking the Terramycin or after? I'm real confused and don't want to make him any sicker! He is eating some and his wattle and comb are still red.